<div id="header">
<h3>header</h3>
   <h1>Un gros titre</h1>
</div>
<div id="topMenu">
    <h3>topMenu</h3>
    <menu>
        <ul id="reflist">
        <li><a href="index22.php">Nouvelles</a></li>
        <li><a href="index22.php">Réferentiel</a></li>
        <li><a href="index22.php">Editer son rapport</a></li>
        <li><a href="connection.php?page=monCompte">Mon compte</a></li>
        </ul>
    </menu>
    <div id="connection">
        <?php 
            $_SESSION['connected']=TRUE;
            $_SESSION['user']='Marc';
            if($_SESSION['connected']){ 
                ?>
            Bienvenue <?php echo $_SESSION['user'] ?>   
        <?php } else{ ?>
        Connection
        Inscription
        <?php } ?>
    </div>
</div>